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Rails find_or_create_by more than one attribute?
...classes/ActiveRecord/…
– Duke
Feb 20 '16 at 0:32
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How to interpret API documentation function parameters?
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edited Jun 20 at 9:12
Community♦
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answered Jan 16 '13 at 15:39
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how does multiplication differ for NumPy Matrix vs Array classes?
....677],
[ 0.269, 0.071, 0.377, 0.25 , 0.692],
[ 0.274, 0.206, 0.655, 0.062, 0.229],
[ 0.397, 0.115, 0.083, 0.19 , 0.701]])
>>> LA.matrix_rank(m)
5
matrix condition:
>>> a1 = NP.random.randint(1, 10, 12).reshape(4, 3)
>>> LA.cond(a1)
5.709...
Where can I learn how to write C code to speed up slow R functions? [closed]
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@jbremnant: That's right. Rcpp classes implement something close to the RAII pattern. When an R...
npm install vs. update - what's the difference?
...of an update.
– saeed
Sep 18 '12 at 20:44
11
So what should I use, npm install or npm update? Or,...
What happens if i return before the end of using statement? Will the dispose be called?
...w; } '
– Dave Black
Apr 5 '11 at 20:52
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What is the difference between ? and Object in Java generics?
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answered Mar 24 '09 at 19:20
ericksonerickson
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In Go's http package, how do I get the query string on a POST request?
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rogerdpackrogerdpack
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Auto-loading lib files in Rails 4
...lution is better. Here's a blog post with more details: blog.arkency.com/2014/11/…
– hirowatari
Jun 9 '16 at 15:45
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Using a strategy pattern and a command pattern
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answered Jan 26 '16 at 17:20
Ravindra babuRavindra babu
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